Bryant TSTATBBPCM01 A Thermostat User Manual

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installation, start-up and

operating instructions

COMMERCIAL THERMOSTAT

(P/N TSTATBBPCM01-A)

Cancels: New

II TSTAT-1

/15/96

IMPORTANT: Read entire instructions before starting the

installation.

II. SET DIP SWITCHES

There are 4 small switches on the back of the circuit board

which must be conﬁgured by the installer. The ON position

is indicated by small letters on the switch. Ignore the num-

bers (1-4) on the switch. The switch designation (A-D) is printed

on a sticker next to the switch. To change a switch position,

use the corner of a small screwdriver to slide the switch

ON or OFF. Set the DIP switches before installing the

thermostat.

SAFETY CONSIDERATIONS

Read and follow manufacturer instructions carefully. Follow

all local electrical codes during installation. All wiring must

conform to local and national electrical codes. Improper wir-

ing or installation may damage thermostat.

Recognize safety information. This is the safety alert symbol

When the safety alert symbol is present on equipment

or in the instruction manual, be alert to the potential for per-

sonal injury.

A. Air Conditioner or Heat Pump Selection (Switch A)

Use switch A to select between air conditioning and heat pump

applications. A heat pump application uses a reversing valve.

Set switch A to OFF for air conditioning applications (no re-

versing valve). Set switch A to ON for heat pump applica-

tions (O is used to energize the reversing valve). The factory

setting is OFF.

Understand the signal words DANGER, WARNING, and CAU-

TION. These words are used with the safety alert symbol.

DANGER identiﬁes the most serious hazards which will re-

sult in severe personal injury or death. WARNING signiﬁes

a hazard which could result in personal injury or death. CAU-

TION is used to identify unsafe practices which would result

in minor personal injury or property damage.

B. Compressor Stage Selection (Switch B)

Switch B is used to select between a single-stage and a 2-stage

compressor. Set switch B to OFF for a single-stage compres-

sor. Set switch B to ON for a 2-stage compressor. The factory

setting is OFF.

GENERAL

Bryant’s 7-day, commercial, programmable thermostats are

wall-mounted, low-voltage thermostats which maintain room

temperature by controlling the operation of an HVAC (heat-

ing, cooling and ventilation) system. Separate heating and

cooling set points and auto-changeover capability allow occu-

pied and unoccupied programming for energy savings.

C. Outdoor Air or Remote Room Sensor (Switch C)

Switch C is used to conﬁgure the thermostat to work with

either a outdoor air sensor or a remote room sensor. The sen-

sor for the application must be connected to terminals S1 and

S2 of the thermostat. Set switch C to OFF for a outdoor air

sensor. Set switch C to ON for a remote room sensor. The fac-

tory setting is OFF.

All thermostats allow up to 4 time/temperature settings to

be programmed per 24-hr period. Each thermostat stores pro-

grams for 7 independent days. Batteries are not required. Dur-

ing power interruption the internal memory stores comfort

schedules for an unlimited time while the clock continues to

run for at least 72 hours.

D. Averaging of Sensors (Switch D)

Switch D is used if a remote room sensor is being used (switch C

set to ON). The remote room sensor reading can be averaged

with the sensor reading of the thermostat. Set switch D to

OFF if averaging is not required. To average the readings of

the thermostat and remote room sensors, set switch D to ON.

The factory setting is OFF.

The thermostat can be conﬁgured to accept several different

equipment conﬁgurations, from single-stage heating and cool-

ing to 3 stages of heating and 2 stages of cooling. The ther-

mostat comes factory conﬁgured for 1 stage of cooling and

stage of heating.

INSTALLATION

III. INSTALL THERMOSTAT

I. THERMOSTAT LOCATION

WARNING: Before installing thermostat, turn off all

power to the unit. There may be more than one power

disconnect. Electrical shock can cause injury or death.

The thermostat should be mounted:

•

approximately 5 ft from the ﬂoor

close to or in a frequently used room, preferably on an in-

side partitioning wall

. Turn off all power to unit.

•

on a section of wall without pipes or ductwork

. If an existing thermostat is being replaced:

a. Remove existing thermostat from the wall.

The thermostat should not be mounted:

•

close to a window, on an outside wall, or next to a door

leading to the outside

b. Disconnect wires from existing thermostat. Do not

allow wires to fall back into the wall. As each wire

is disconnected, record wire color and terminal

connection.

•

where exposed to direct light and heat from a lamp, the

sun, a ﬁreplace, or any other temperature-radiating object

which may cause a false reading

•

close to or in direct airﬂow from supply registers or return

air grilles

in areas with poor air circulation (such as behind a door or

in an alcove)

c. Discard or recycle old thermostat.

NOTE: Mercury is a hazardous waste and must be disposed

of properly.

. Open thermostat rear door (mounting base) to expose

mounting holes.

present), electric heat can be locked out if the outdoor ambi-

ent temperature rises above the user-deﬁned value. Tempera-

tures of 15 to 55 F (in 5-degree increments) can be selected.

The lockout can also be disabled. The default is OF (dis-

abled). Emergency heat mode disables this function. Press the

Copy Previous Day button in the conﬁguration mode to ac-

cess the parameter. Use the Up and Down buttons to in-

crease or decrease the setting.

. Route thermostat wires through large hole in mount-

ing base. Remove outer sheath from wires for added

ﬂexibility.

. Level mounting base against wall and mark wall through

the 2 mounting holes in base.

. Drill two ³⁄16-in. mounting holes in wall where marked.

D. Clean Filter Timer Selection

CAUTION: Be careful not to drill into wiring in wall.

Electrical shock could result.

The clean ﬁlter selection determines how many hours of blower

operation will pass before the Clean Filter message is dis-

played. A timer in the thermostat accumulates the total blower

operation hours. The range of values is 400 to 3600 hours (in

400-hour increments).

. Secure mounting base to wall with 2 screws and an-

chors provided. Ensure all wires exit through hole in

mounting base.

•

a ‘‘1’’ will be displayed for 400 hours of operation

. Adjust wire length and routing to allow proper closure

• a ‘‘2’’ will be displayed for 800 hours of operation

• a ‘‘3’’ will be displayed for 1200 hours of operation

• a ‘‘4’’ will be displayed for 1600 hours of operation

• a ‘‘5’’ will be displayed for 2000 hours of operation

• a ‘‘6’’ will be displayed for 2400 hours of operation

of the thermostat. Strip each wire at the end no more

than ⁄

-in. to prevent adjacent wires from shorting to-

gether. Match and connect wires to terminals on the

thermostat. See Fig. 1-4.

•

a ‘‘7’’ will be displayed for 2800 hours of operation

CAUTION: Improper wiring or installation may cause

damage to the thermostat. Check to ensure wiring is

correct before proceeding with installation of unit.

• a ‘‘8’’ will be displayed for 3200 hours of operation

• a ‘‘9’’ will be displayed for 3600 hours of operation

The selection can also be set to OF (disabled). Press the

Reset Filter button in the conﬁguration mode to access the

parameter. Use the Up and Down buttons to change the set-

ting. The default is 2 (800 hours).

. Push excess wiring into wall. Seal hole in wall to pre-

vent drafts.

0. Close thermostat door.

NOTE: During the selection procedure, the Clean Filter mes-

sage will be displayed, even if OF (disabled) is chosen.

11. Turn on power to unit. The thermostat will receive power

from the unit.

E. Anticipator Adjustment Selection

On power up the thermostat display shows the selected setup

mode (AC - single-stage air-conditioner, HP - single-stage heat

pump, A2 - 2-stage air conditioner, H2 - 2-stage heat pump)

for a few seconds, depending on DIP switch settings.

The anticipator adjustment controls the sensitivity and cycle

rate of the thermostat. Higher numbers decrease the sensi-

tivity and slow the cycle rate. Lower numbers increase sen-

sitivity and speed up the cycle rate. A limiting feature of the

thermostat will not allow more than 4 equipment cycles per

hour, regardless of the anticipator setting. Values can range

from 1 to 9. The default is 3. The default selection will pro-

vide optimum performance in nearly all installations. Do not

change the setting unless there is a need to do so. Press the

Mode button during conﬁguration mode to change the set-

ting. Use the Up and Down buttons to increase or decrease

the value.

IV. SET THERMOSTAT CONFIGURATION

Conﬁguration options, like DIP switch settings, are intended

to be selected at installation and are not normally modiﬁed

by the user. These options are not discussed in the owner ’s

manual and must be done as part of the installation. A spe-

cial procedure for the thermostat allows entry into the con-

ﬁguration mode. To enter conﬁguration mode, press and hold

the fan button for approximately 10 seconds. The room tem-

perature display will disappear and dashes (--) will be dis-

played on the thermostat screen. The thermostat will auto-

matically exit conﬁguration mode if no button is pressed for

Unlike conventional thermostat anticipators, the setting is

not determined by current draw. There is no need to mea-

sure, know, or compensate for the current. There is no need

to ‘‘droop’’ with this thermostat, regardless of the anticipator

setting.

0 seconds. Seven different conﬁgurations can be set in con-

ﬁguration mode.

F. Keypad Lockout Selection

A. Fahrenheit or Celsius Selection

The thermostat has a lockout feature which will not acknowl-

edge conﬁguration buttons until the lockout code is entered.

After the lockout code has been entered, the keypad will re-

main unlocked until the user has stopped pressing keys for

The thermostat can be set to use a Celsius or Fahrenheit tem-

perature display. Press the Change Day button in conﬁgura-

tion mode to access the parameter. Use the Up and Down

buttons on the thermostat to change the setting between F

minutes. The Lockout selection can be set to ON or OF (dis-

(Fahrenheit) and C (Celsius). The default value is F.

abled). Press the Set Time key in conﬁguration mode to change

the setting. Use the Up or Down buttons to toggle between

off and on. The default is OF.

B. Fan ON or OFF When Heat is Energized Selection

The thermostat can be set to turn the fan (G output) on or off

when the heat input (terminal W) is energized. Press the Hold

button while in conﬁguration mode to access the parameter.

Use the Up and Down buttons to toggle between OF (fan off

during heating) and ON (fan on during heating). The default

value is OF.

NOTE: If the lockout function is enabled, the user can only

disable the lockout by pressing the correct buttons, in order,

within a 10-second time period. The button sequence is: press

the Mode button; press the Copy Previous Day button; press

the Set Time button; and press the Hold button. The lockout

will then be disabled until the user stops pressing buttons

for 2 minutes.

C. High Ambient Electric Heat Lockout Selection

If DIP switch A is set to ON (heat pump application) and DIP

switch C is set to OFF (an outdoor temperature sensor is

—

2—

CONNECTION

BOARD

O/W2

Y/Y2

W/W1

48D036-120

49B036-120

51B036-150

58D036-150

80D036-150

81B036-150

DO NOT USE

Does not apply to 558D and 580D036-150 units.

NOTES:

. 558D and 580D036-072 units only have one stage of cooling, but

can have 2 stages of heat. In these applications set DIP switch B

to ON for 2-stage operation.

COMMERCIAL

THERMOSTAT

2. For 548D and 549B heat pump applications, set switch A to OFF

(air conditioning). The 548D and 549B units do not have an ‘‘O’’

terminal.

Fig. 1 — Thermostat Wiring (548D036-120; 549B036-120; 551B036-150;

558D036-150; 580D036-150; 581B036-150)

TB2

O/W2

Y/Y2

W/W1

551A155-240

559E180-240

559F180-300

579E180-240

579F180-300

581A155-240

DO NOT USE

COMMERCIAL

THERMOSTAT

Fig. 2 — Thermostat Wiring (551A155-240; 559E180-240; 559F180-300;

79E180-240; 579F180-300; 581A155-240)

—

3—

TB2

O/W2

FIELD RELAY

Y/Y2

W/W1

FIELD

RELAY

DO NOT USE

542J150 and 180

NOTES:

. Field relay P/N HN61KK224.

. Set switch A to OFF (air conditioning). The 542J units do not have an

‘O’’ terminal.

‘

COMMERCIAL

THERMOSTAT

Fig. 3 — Thermostat Wiring (542J150 and 180)

TB3

O/W2

Y/Y2

W/W1

58G,H240-360

80G,H240-360

DO NOT USE

COMMERCIAL

THERMOSTAT

Fig. 4 — Thermostat Wiring (558G,H240-360 and 580G,H240-360)

—

4—

G. Low Ambient Cooling Lockout Selection

heating set point). If COOL is selected, the thermostat will

only enter cooling mode (if the room temperature is above

the cooling set point). If AUTO is selected, the thermostat will

enter heating or cooling mode based on the room tempera-

ture and the heating and cooling set points. Heat pumps also

have an EHEAT selection. If EHEAT is selected, the heat pump

will use the second stage of heating to provide heat when

needed. The annuciator for each selection will be displayed

on the thermostat when selected.

The Low Ambient Cooling Lockout feature will lock out cool-

ing mode if the outdoor-air temperature is below the lockout

cooling temperature (user-conﬁgured).

NOTE: This conﬁguration is not available if DIP switch C (Re-

mote Room Sensor) is set to ON or if the outdoor-air sensor is

in error.

The default is OF (disabled). The lockout temperature can be

set to OF (disabled) or 20 to 60 F in 5-degree increments (en-

abled). To conﬁgure the selection, press the Program button

in the conﬁguration mode. Use the Up and Down buttons to

increase or decrease the setting.

II. FIVE-MINUTE COMPRESSOR SHORT-CYCLE

PROTECTION

The timer prevents the compressor from starting until it has

been off for at least 5 minutes. The short-cycle protection func-

tion can be disabled (for one cycle only) by simultaneously

pressing the Fan button and the Up button.

V. CHECK THERMOSTAT OPERATION

Perform the following procedure to check thermostat

operation:

III. FIFTEEN-MINUTE CYCLE TIMER

. Press the Hold button. This will prevent the set point

from changing until the desired time and temperature

schedule is entered.

The cycle timer prevents the start of a heating or cooling cycle

until at least 15 minutes after the last start of the same cycle.

This function keeps the equipment from being cycled more

than 4 times in one hour. The cycle timer can be disabled (for

one cycle only) by either changing the temperature set point

or by simultaneously pressing the Fan button and the Up

button.

. Press the Fan button to switch the fan annunciator from

AUTO to ON. The fan should run continuously. Check

fan operation. Press the fan button again to switch back

to AUTO.

. Press the mode button repeatedly until HEAT is dis-

played in the mode annunciator. Press the Up button

until the set point reads 10 degrees above room tem-

perature. The heating system should begin to operate

within 5 minutes.

IV. FIFTEEN-MINUTE STAGING TIMER

When multi-stage heating or cooling is used, the staging timer

prevents any higher stage from energizing until at least

5 minutes has passed from the start of the previous stage.

. Press the mode button repeatedly until COOL is dis-

played in the mode annunciator. Press the Down button

until the set point reads 10 degrees below room tem-

perature. The cooling system should begin to operate

within 5 minutes.

The timer is disabled if the temperature demand is greater

than 5 degrees.

V. TWO-MINUTE MINIMUM ON TIME

In normal operation, when a stage is energized, it must re-

main on for at least 2 minutes.

VI. SELECT THERMOSTAT OPERATION SETTINGS

VI. HEATING/COOLING SET POINT MINIMUM

DIFFERENCE

Thermostat operation should be conﬁgured. Set the Fan and

Mode conﬁgurations to their desired settings. Press the Up

and Down buttons to select the desired comfort temperature.

A minimum difference of 3 degrees is enforced between the

heating and cooling set points. The thermostat will not allow

the set points to be set within 3 degrees of each other.

NOTE: Daily schedules can be programmed by the installer

or the user. A detailed explanation of the schedule program-

ming is in the Owner ’s Guide. If the daily schedules of the

thermostat are being conﬁgured, refer to the thermostat own-

er ’s guide literature.

VII. AUTO-CHANGEOVER TIMER

When the auto-changeover mode is selected, the thermostat

will not change from heating to cooling or cooling to heating

until an opposite demand has existed for a minimum of

VII. FINAL CHECKLIST

0 minutes. The timer is disabled if the heating or cooling

. Put away tools and instruments. Clean up debris and

packaging.

set point is changed.

. Review Owner ’s Guide with occupant or owner.

. Leave Owner ’s Guide with occupant or owner.

VIII. POWER-ON THERMOSTAT CHECK

When power is applied to the thermostat, all possible display

annunciators are turned on for a few seconds. The thermo-

stat then indicates the current mode and conﬁguration infor-

mation with a 2-digit code. The following codes can be dis-

played: AC — single-speed air conditioner, HP — single-

speed heat pump, A2 — two-speed air conditioner, and H2 —

two-speed heat pump.

OPERATION

I. HOLD, FAN, AND MODE BUTTON OPERATION

Pressing the Hold button disables the time and temperature

schedule and holds the current desired temperature set point.

When a Hold is active, the HOLD annunciator is displayed

on the thermostat screen. To release the Hold, press the Hold

button a second time.

IX. ERROR CODES

The thermostat will display the following error codes if er-

rors are detected:

The Fan button selects fan operation. When the fan is set to

ON, the fan will run continuously. When the fan is set to AUTO,

the fan will run during heating and cooling operation only.

E1 — If the thermostat cannot properly read room tempera-

ture, the thermostat will display an E1 and all outputs (ex-

cept the fan if on), will be deenergized.

The Mode button selects the operating mode of the thermo-

stat. If OFF is selected, the thermostat will not enter heating

or cooling mode. If HEAT is selected, the thermostat will only

enter heating mode (if the room temperature is below the

E2 — If the AC line voltage drops below the minimum level,

all outputs are deenergized and the thermostat will display

an E2. The E2 error will remain until proper line voltage has

—

5—

been restored (plus 15 seconds). If the line voltage is com-

pletely interrupted, the thermostat display will immediately

go blank.

unoccupied). The Smart Recovery function begins 1.5 hours

before the scheduled occupied mode and gradually adjusts room

temperature so the temperature is at the occupied mode set

point when the occupied time period begins.

X. SMART RECOVERY (Heating Mode Only)

The thermostat has 2 programmed schedule modes, normal

occupied mode and setback mode (a time when the space is

TROUBLESHOOTING

PROBLEM

SOLUTION

LCD display on thermostat not illuminated

Check for 24 vac between R and C at terminal connections. Both R and

C must be connected for proper thermostat operation.

‘‘E2’’ displayed on thermostat

Brownout condition or voltage is too low to thermostat. Check wiring and

check for 24 vac at R and C. The E2 error will clear 15 seconds after

acceptable power levels are restored.

‘‘E1’’ displayed on thermostat

Temperature sensor reading is out of range. Check the sensor for dam-

age. Check sensor wiring. Cycle power to thermostat. If display is not

cleared, replace thermostat .

‘‘Clean Filter’’ is displayed on thermostat

After the conﬁgured number of blower operating hours, the Clean Filter

message will be displayed. This reminds the owner to replace the ﬁlter.

Press the Reset Filter button to reset the blower operation timer to

hours.

‘‘--’’ displayed on thermostat

If the outdoor thermostat is in error, not connected, or shorted, ‘‘--’’ will be

displayed. Check outdoor thermostat wiring and replace if necessary.

Cooling will not energize

Select COOL mode. Decrease cooling set point to 10 degrees below

room temperature. Simultaneously press Fan and Up buttons to disable

timers. Check for 24 vac at Y/Y2 terminal. If present, thermostat is oper-

ating correctly and problem is with wiring or equipment. If 24 vac is not

present, replace the thermostat.

Heating will not energize

Select HEAT mode. Increase heating set point to 10 degrees above room

temperature. Simultaneously press Fan and Up buttons to disable timers.

Check for 24 vac at Y/Y2 terminal (for heat pump) or W/W1 terminal (for

gas/electric heat unit). If present, thermostat is operating correctly and

problem is with wiring or equipment. If 24 vac is not present, replace the

thermostat.

—

6—

PACKAGED SERVICE TRAINING

Our packaged service training programs provide an excellent way to increase your knowledge of the

equipment discussed in this manual. Product programs cover:

•

Maintenance

Operating Sequence

•

Unit Familiarization

Installation Overview

A large selection of product, theory, and skills programs is available. All programs include a video

cassette and/or slides and a companion booklet. Use these for self teaching or to conduct full training

sessions.

For a free Service Training Material Catalog (STM), call 1-800-962-9212. Ordering instructions are

included.

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